Chemical roller head core



FIG. 1 is a perspective view of a chemical roller head core;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a rightside view thereof;

FIG. 5 is a leftside view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a cross-sectional view thereof.

The broken lines in the drawings illustrate portions of the chemical roller head core that form no part of the claimed design. 

CLAIM The ornamental design for a chemical roller head core, as shown and described. 